/*
 * Copyright 1997-1999 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

package net.droidsolutions.droidcharts.awt;

/**
 * The <code>Transparency</code> interface defines the common transparency modes
 * for implementing classes.
 */
public interface Transparency {

	/**
	 * Represents image data that is guaranteed to be completely opaque, meaning
	 * that all pixels have an alpha value of 1.0.
	 */
	public final static int OPAQUE = 1;

	/**
	 * Represents image data that is guaranteed to be either completely opaque,
	 * with an alpha value of 1.0, or completely transparent, with an alpha
	 * value of 0.0.
	 */
	public final static int BITMASK = 2;

	/**
	 * Represents image data that contains or might contain arbitrary alpha
	 * values between and including 0.0 and 1.0.
	 */
	public final static int TRANSLUCENT = 3;

	/**
	 * Returns the type of this <code>Transparency</code>.
	 * 
	 * @return the field type of this <code>Transparency</code>, which is either
	 *         OPAQUE, BITMASK or TRANSLUCENT.
	 */
	public int getTransparency();
}
